A subway station in Briarwood is completely empty during Hurricane Sandy.Europa Newswire / Demotix

Water rushes into the Brooklyn Battery Tunnel, caused by Hurricane Sandy. (Getty Images)

The MTA began running limited bus service tonight at 5 p.m. and will begin operating on a full schedule by tomorrow, Gov. Cuomo announced today.

There will be no fares on any of the buses for the time being to help the region recover from the storm, he said.

Several Manhattan buses got rolling early this evening, including the M34, M34A, M14, M57 and M22 lines.

The MTA expects to have all lines running tomorrow.

Restorations of subway service, however, remains unclear.

Officials said the underground tunnels suffered extensive flooding, and it could be up to five days before full service is restored.

Cuomo said it’s possible the subways will come up bit by bit.

The governor also said that the Brooklyn Battery and Holland Tunnels will remain closed due to flooding.

The Outerbridge Crossing, George Washington, Goethals and Bayonne bridges have been reopened, according to the Port Authority of New York and New Jersey. However, all motorists are urged to avoid driving unless absolutely necessary.